CALCULUS HELP !

f(x)=(-3x^3-x^2-9x-8)/(6x^2+4x+3. Find the equation of the non-vertical asymptote. y=
Does f(x) intersect its non-vertical asymptote ?
What is the smallest value of x at which f(c) intersects its non-vertical asymptote ?

please show all the work. I did this and got the wrong answer. I want to know where I made a mistake. Thank you